Here are two maps of Boston. I might include some text here about this set of maps.
##Map #1 shows the trees within 500 meters of schools across the city of Boston. It also notes the percentage of total trees within 500 meters of all school: * demonstrates the following skills: Calculating and displaying relationships among point and polygon layers based on distance
##Map #2 Boston Tree and Schools Map#2 shows the count of schools per community area in Boston: *demonstrates aggregating points to a polygon
This map shows accessibility based on a distance-decay function of the walking time to the nearest transit stop. It demonstrates the following skills: